A modern programming language that makes developers happier.

kotlinlang

&gt; Class 'androidx.navigation.compose.NavHostKt' is compiled by an unstable version of the Kotlin compiler and cannot be loaded by this compiler 
What does this mean? It happened after updating kotlin to 1.4.30 and compose to 1.0.0-alpha12.

Update navigation to the latest version if you haven’t already, and <https://kotlinlang.slack.com/archives/CJLTWPH7S/p1613249284429500?thread_ts=1613247713.428600&amp;channel=CJLTWPH7S&amp;message_ts=1613249284.429500|https://kotlinlang.slack.com/archives/CJLTWPH7S/p1613249284429500?thread_ts=1613247713.428600&amp;channel=CJLTWPH7S&amp;message_ts=1613249284.429500>

Yep, make sure to upgrade to Navigation Compose alpha07, which is the only version compatible with Compose alpha12 as per the release notes: <https://developer.android.com/jetpack/androidx/releases/navigation#compose-1.0.0-alpha07|https://developer.android.com/jetpack/androidx/releases/navigation#compose-1.0.0-alpha07>